mixin mixinHead(title, desc)
  head
    meta(charset="utf-8")
    meta(http-equiv="X-UA-Compatible", content="IE=edge")
    meta(name="viewport", content="width=device-width, initial-scale=1, user-scalable=0")
    if title
      title #{title} | #{store.defaultSiteTitle}
    else
      title= store.defaultSiteTitle + ' | ' + store.defaultSiteDescription
    meta(name="description", content= desc || (store.defaultSiteTitle + ': ' + store.defaultSiteDescription))
    meta(name="author", content="yakima")
    meta(name="renderer", content="webkit")
    link(rel="icon", href="./assets/images/favicon.ico")

    //- 第三方css文件开始
    //link(rel="stylesheet", href="//cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css")
    //- IE10 viewport hack for Surface/desktop Windows 8 bug
    link(rel="stylesheet", href="./assets/ie10-viewport-bug-workaround.css")
    //- 第三方css文件结束

    //- 网站全局样式
    link(rel="stylesheet", href="./styles/global/global.min.css" + store.versionQuery)

    //- script(src="https://cdn.bootcss.com/html5shiv/3.7.3/html5shiv.min.js")
    //- script(src="https://cdn.bootcss.com/respond.js/1.4.2/respond.min.js")
    //- libs-before.min.js是一些对网站样式可能有较大影响的脚本
    script(src="./scripts/libs/libs-onheadready.min.js" + store.versionQuery)
    if block
      block
    else
      //- show nothing here
